Island



(Model.)

T. COOPER. LUBQIATOR. N0, 531,836. 'Patented Jam. l, 1895. Fizz'. j. Fig'. 2, Fil/:'- 5

WTNESEEE.' IN EZ'EN TUE.'

UNITED STAT-ns THEODORE COOPER, OF PROVIDENCE, RHODE ISLAND.

LUBRICATOR.

SPECIFICATION forming part of vLetters Patent No. 531,836, dated January 1,1895.

Application iiled September 17,1894- Serial No. 523,197. (Model.)

To @JZ whom t may concern.-

Be it known that I, Trrnononn COOPER, of

accompanying drawings, forming part of this speciiication.

This invention has reference to improvements in devices for lubricating bearings.

One object of the invention is to so construct a device for lubricating pulleys, or other mechanisms loosely mounted to rotate on a shaft, that a constant circulation of the lubricant may be maintained to and from the bearing surface.

Another object of the invention is to so construct a lubricating device ot' the nature herein described that the Iiow of the lubricant may he automatically regulated.

Still another object is to provide a lubricator of this construction with means whereby a supply of lubricant may be introduced into the reservoir from time to time.

The invention consists in the peculiar construction of the reservoir for containing the body of lubricating fluid.

The invention also consists in the novel construction of the bushing and its combination with an oil-reservoir. c

The invention still further consists in the combination with the peculiar oil-reservoir and the novel bushing ot' the ball-valve free to move between the longitudinal ribs of the bushing.

The invention likewise consists ink such other novel features of construction and combination of parts as will hereinafter be more fully described and pointed out in the claims.

Figure 1 represents a onehalt plan view of the reservoir end of the lubricator, the mouth of the supply-passage being shown as closed by a screw. Fig. 2 represents a longitudinal section of the lubricator. Fig. 3 represents a one-half plan view from the end of the securing nut. Fig. 4; represents a one-half vertical sectional view taken on a line tlf-a, Fig. 2, looking in the direction indicated by the arrow b. Fig. 5 represents a side elevation of the bushing removed from the lubricator.

Fig. 6 represents a sectional view of the same taken on aline c-c, Fig, 5, looking in the direction indicated by the arrow (Z.

Similar numbers of reference designate corresponding parts throughout.

In the drawings 10 represents the face-plate of the lubricator, through which is formed an inclined channel 11,connecting with the interior, through which the lubricating tluid may be introduced, this channel being closed by a screw-plug 11. The central portion of the plate 10 has a circular opening through which the bushing may be inserted. Extending from the inner side ot' the face-plate is an annular reservoir 12, beyond which is located a serios of chambered projections 13-13 of an outside diameter equal to that of the reservoir 12 and increasing the capacity of the same, while connecting these chambers is an annular space 14e. Again, beyond the chambered projections the outer diameter of the lubricator wall is reduced, the inner bore being also reduced in diameter and having the channel 15 extending toward the open end of the screw-threaded sleeve 16.

The bushing 17 has enlarged ends 1S and 19 which closely t the bore of the plate 10 and of the sleeve 16 its central portion being contracted in diameter and furnished with the longitudinal-ribs 20-20 between which is the lateral outlet 21. Extending from that portion of the wall opposite the outlet 21 is the stud 22 which fits into the channel 15 and prevents the independent rotation of the bushing. Through this portion of the enlarged end 19 is formed the opening 23 connecting with the annular groove 2i formed in the inner surface of the end 19, this being connected by the longitudinal groove 25 with the annular-groove 26 in the inner surface of the end 1S. The bali-valve 27 is free. to move on the contracted surface of the bushing between the ribs 20-20, its movement and the space it occupies tending to interrupt the flow of lubricant to the outlet 2l.

The sleeve 16 is furnished with a nut 28 whereby after the lubricator has been inserted through a central opening in the pulley,trol ley, &c.,for which it is adapted, the whole may be secured in place.

When a supply of oil or other Huid lubri cant is placed in the reservoir and the lubri- ICO cator is rotated, the oil passes through the outlet 21 in the bushing to the inner surface of the same and is applied to the shaft on which the bushing is journaled, the surplus collecting in the groove 25 and passing to the grooves 24: and 26. From the groove 24 the surplus then passes back through the wall of the bushing to the channel and so to the reservoir.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. In a bushing lubricator for loose pulleys, the combination with an annular reservoir open at its center to receive the bushing and having a series of chambered projections radially disposed beyond the reservoir, and a screw-threaded sleeve extending from the reservoir having an inner channel, of a bushing, extending through the reservoir and secured from independent rotation, having enlarged ends one ot which is furnished with an opening, longitudinal ribs on the reduced portion of the bushing andan outlet located between the ribs, and a ball-valve movable in the reservoir between the ribs of the bushing.

2. The combination with the reservoir 12 partially closed by the face-plate 10 through which is formed the passage 1l, the chamloered projections radially disposed around the contracted portion 14 of the reservoir, and the sleeve 16 having the channel l5, of the bushing 17, having the enlarged ends 18 and 19, adapted to tit the bores of the faceplate and of the sleeve 16, the ribs 2O on the contracted portion of the bushing, the outlet 2l between these ribs, the opening 23 in the end 18, the stud 22 extending from the contracted portion between the ends, the annular grooves 24 and 26 formed in the inner surfaces of the ends and the longitudinal-groove 25 connecting these annular grooves, the ball 27 movable in the reservoir between the ribs 20-20, and the nut 2S for securing the lubricator in piace, as described.

In Witness whereof I have hereunto set my hand.

THEoDoRE cooPEa.

Vtnesses:

HENRY J. MILLER, JOSEPH A. MILLER.. 

